Unify event logging and debug tracing.
[ghc.git] / rts / RtsFlags.c
1 /* -----------------------------------------------------------------------------
2 *
3 * (c) The AQUA Project, Glasgow University, 1994-1997
4 * (c) The GHC Team, 1998-2006
5 *
6 * Functions for parsing the argument list.
7 *
8 * ---------------------------------------------------------------------------*/
9
10 #include "PosixSource.h"
11 #include "Rts.h"
12
13 #include "RtsUtils.h"
14 #include "Profiling.h"
15
16 #ifdef HAVE_CTYPE_H
17 #include <ctype.h>
18 #endif
19
20 #include <string.h>
21
22 // Flag Structure
23 RTS_FLAGS RtsFlags;
24
25 /*
26 * Split argument lists
27 */
28 int prog_argc = 0; /* an "int" so as to match normal "argc" */
29 char **prog_argv = NULL;
30 int full_prog_argc = 0; /* an "int" so as to match normal "argc" */
31 char **full_prog_argv = NULL;
32 char *prog_name = NULL; /* 'basename' of prog_argv[0] */
33 int rts_argc = 0; /* ditto */
34 char *rts_argv[MAX_RTS_ARGS];
35
36 /*
37 * constants, used later
38 */
39 #define RTS 1
40 #define PGM 0
41
42 /* -----------------------------------------------------------------------------
43 Static function decls
44 -------------------------------------------------------------------------- */
45
46 static int /* return NULL on error */
47 open_stats_file (
48 I_ arg,
49 int argc, char *argv[],
50 int rts_argc, char *rts_argv[],
51 const char *FILENAME_FMT,
52 FILE **file_ret);
53
54 static I_ decode(const char *s);
55 static void bad_option(const char *s);
56
57 /* -----------------------------------------------------------------------------
58 * Command-line option parsing routines.
59 * ---------------------------------------------------------------------------*/
60
61 void initRtsFlagsDefaults(void)
62 {
63 RtsFlags.GcFlags.statsFile = NULL;
64 RtsFlags.GcFlags.giveStats = NO_GC_STATS;
65
66 RtsFlags.GcFlags.maxStkSize = (8 * 1024 * 1024) / sizeof(W_);
67 RtsFlags.GcFlags.initialStkSize = 1024 / sizeof(W_);
68
69 RtsFlags.GcFlags.minAllocAreaSize = (512 * 1024) / BLOCK_SIZE;
70 RtsFlags.GcFlags.minOldGenSize = (1024 * 1024) / BLOCK_SIZE;
71 RtsFlags.GcFlags.maxHeapSize = 0; /* off by default */
72 RtsFlags.GcFlags.heapSizeSuggestion = 0; /* none */
73 RtsFlags.GcFlags.pcFreeHeap = 3; /* 3% */
74 RtsFlags.GcFlags.oldGenFactor = 2;
75 RtsFlags.GcFlags.generations = 2;
76 RtsFlags.GcFlags.steps = 2;
77 RtsFlags.GcFlags.squeezeUpdFrames = rtsTrue;
78 RtsFlags.GcFlags.compact = rtsFalse;
79 RtsFlags.GcFlags.compactThreshold = 30.0;
80 RtsFlags.GcFlags.sweep = rtsFalse;
81 #ifdef RTS_GTK_FRONTPANEL
82 RtsFlags.GcFlags.frontpanel = rtsFalse;
83 #endif
84 RtsFlags.GcFlags.idleGCDelayTime = 300; /* millisecs */
85
86 #if osf3_HOST_OS
87 /* ToDo: Perhaps by adjusting this value we can make linking without
88 * -static work (i.e., not generate a core-dumping executable)? */
89 # if SIZEOF_VOID_P == 8
90 RtsFlags.GcFlags.heapBase = 0x180000000L;
91 # else
92 # error I have no idea where to begin the heap on a non-64-bit osf3 machine.
93 # endif
94 #else
95 RtsFlags.GcFlags.heapBase = 0; /* means don't care */
96 #endif
97
98 #ifdef DEBUG
99 RtsFlags.DebugFlags.scheduler = rtsFalse;
100 RtsFlags.DebugFlags.interpreter = rtsFalse;
101 RtsFlags.DebugFlags.weak = rtsFalse;
102 RtsFlags.DebugFlags.gccafs = rtsFalse;
103 RtsFlags.DebugFlags.gc = rtsFalse;
104 RtsFlags.DebugFlags.block_alloc = rtsFalse;
105 RtsFlags.DebugFlags.sanity = rtsFalse;
106 RtsFlags.DebugFlags.stable = rtsFalse;
107 RtsFlags.DebugFlags.stm = rtsFalse;
108 RtsFlags.DebugFlags.prof = rtsFalse;
109 RtsFlags.DebugFlags.apply = rtsFalse;
110 RtsFlags.DebugFlags.linker = rtsFalse;
111 RtsFlags.DebugFlags.squeeze = rtsFalse;
112 RtsFlags.DebugFlags.hpc = rtsFalse;
113 RtsFlags.DebugFlags.sparks = rtsFalse;
114 #endif
115
116 #if defined(PROFILING)
117 RtsFlags.CcFlags.doCostCentres = 0;
118 #endif /* PROFILING */
119
120 RtsFlags.ProfFlags.doHeapProfile = rtsFalse;
121 RtsFlags.ProfFlags.profileInterval = 100;
122
123 #ifdef PROFILING
124 RtsFlags.ProfFlags.includeTSOs = rtsFalse;
125 RtsFlags.ProfFlags.showCCSOnException = rtsFalse;
126 RtsFlags.ProfFlags.maxRetainerSetSize = 8;
127 RtsFlags.ProfFlags.ccsLength = 25;
128 RtsFlags.ProfFlags.modSelector = NULL;
129 RtsFlags.ProfFlags.descrSelector = NULL;
130 RtsFlags.ProfFlags.typeSelector = NULL;
131 RtsFlags.ProfFlags.ccSelector = NULL;
132 RtsFlags.ProfFlags.ccsSelector = NULL;
133 RtsFlags.ProfFlags.retainerSelector = NULL;
134 RtsFlags.ProfFlags.bioSelector = NULL;
135 #endif
136
137 #ifdef TRACING
138 RtsFlags.TraceFlags.trace_stderr = rtsFalse;
139 RtsFlags.TraceFlags.timestamp = rtsFalse;
140 RtsFlags.TraceFlags.scheduler = rtsFalse;
141 #endif
142
143 RtsFlags.MiscFlags.tickInterval = 20; /* In milliseconds */
144 RtsFlags.ConcFlags.ctxtSwitchTime = 20; /* In milliseconds */
145
146 RtsFlags.MiscFlags.install_signal_handlers = rtsTrue;
147 RtsFlags.MiscFlags.machineReadable = rtsFalse;
148 RtsFlags.MiscFlags.linkerMemBase = 0;
149
150 #ifdef THREADED_RTS
151 RtsFlags.ParFlags.nNodes = 1;
152 RtsFlags.ParFlags.migrate = rtsTrue;
153 RtsFlags.ParFlags.wakeupMigrate = rtsFalse;
154 RtsFlags.ParFlags.parGcEnabled = 1;
155 RtsFlags.ParFlags.parGcGen = 1;
156 RtsFlags.ParFlags.parGcLoadBalancing = 1;
157 RtsFlags.ParFlags.setAffinity = 0;
158 #endif
159
160 #if defined(THREADED_RTS)
161 RtsFlags.ParFlags.maxLocalSparks = 4096;
162 #endif /* THREADED_RTS */
163
164 #ifdef TICKY_TICKY
165 RtsFlags.TickyFlags.showTickyStats = rtsFalse;
166 RtsFlags.TickyFlags.tickyFile = NULL;
167 #endif
168
169 #ifdef USE_PAPI
170 /* By default no special measurements taken */
171 RtsFlags.PapiFlags.eventType = 0;
172 RtsFlags.PapiFlags.numUserEvents = 0;
173 #endif
174 }
175
176 static const char *
177 usage_text[] = {
178 "",
179 "Usage: <prog> <args> [+RTS <rtsopts> | -RTS <args>] ... --RTS <args>",
180 "",
181 " +RTS Indicates run time system options follow",
182 " -RTS Indicates program arguments follow",
183 " --RTS Indicates that ALL subsequent arguments will be given to the",
184 " program (including any of these RTS flags)",
185 "",
186 "The following run time system options are available:",
187 "",
188 " -? Prints this message and exits; the program is not executed",
189 " --info Print information about the RTS used by this program",
190 "",
191 " -K<size> Sets the maximum stack size (default 8M) Egs: -K32k -K512k",
192 " -k<size> Sets the initial thread stack size (default 1k) Egs: -k4k -k2m",
193 "",
194 " -A<size> Sets the minimum allocation area size (default 512k) Egs: -A1m -A10k",
195 " -M<size> Sets the maximum heap size (default unlimited) Egs: -M256k -M1G",
196 " -H<size> Sets the minimum heap size (default 0M) Egs: -H24m -H1G",
197 " -m<n> Minimum % of heap which must be available (default 3%)",
198 " -G<n> Number of generations (default: 2)",
199 " -T<n> Number of steps in younger generations (default: 2)",
200 " -c<n> Use in-place compaction instead of copying in the oldest generation",
201 " when live data is at least <n>% of the maximum heap size set with",
202 " -M (default: 30%)",
203 " -c Use in-place compaction for all oldest generation collections",
204 " (the default is to use copying)",
205 " -w Use mark-region for the oldest generation (experimental)",
206 #if defined(THREADED_RTS)
207 " -I<sec> Perform full GC after <sec> idle time (default: 0.3, 0 == off)",
208 #endif
209 "",
210 " -t[<file>] One-line GC statistics (if <file> omitted, uses stderr)",
211 " -s[<file>] Summary GC statistics (if <file> omitted, uses stderr)",
212 " -S[<file>] Detailed GC statistics (if <file> omitted, uses stderr)",
213 #ifdef RTS_GTK_FRONTPANEL
214 " -f Display front panel (requires X11 & GTK+)",
215 #endif
216 "",
217 "",
218 " -Z Don't squeeze out update frames on stack overflow",
219 " -B Sound the bell at the start of each garbage collection",
220 #if defined(PROFILING)
221 "",
222 " -px Time/allocation profile (XML) (output file <program>.prof)",
223 " -p Time/allocation profile (output file <program>.prof)",
224 " -P More detailed Time/Allocation profile",
225 " -Pa Give information about *all* cost centres",
226
227 # if defined(PROFILING)
228 "",
229 " -hx Heap residency profile (XML) (output file <program>.prof)",
230 " -h<break-down> Heap residency profile (hp2ps) (output file <program>.hp)",
231 " break-down: c = cost centre stack (default)",
232 " m = module",
233 " d = closure description",
234 " y = type description",
235 " r = retainer",
236 " b = biography (LAG,DRAG,VOID,USE)",
237 " A subset of closures may be selected thusly:",
238 " -hc<cc>,... specific cost centre(s) (top of stack only)",
239 " -hC<cc>,... specific cost centre(s) (anywhere in stack)",
240 " -hm<mod>... all cost centres from the specified modules(s)",
241 " -hd<des>,... closures with specified closure descriptions",
242 " -hy<typ>... closures with specified type descriptions",
243 " -hr<cc>... closures with specified retainers",
244 " -hb<bio>... closures with specified biographies (lag,drag,void,use)",
245 "",
246 " -R<size> Set the maximum retainer set size (default: 8)",
247 "",
248 " -L<chars> Maximum length of a cost-centre stack in a heap profile",
249 " (default: 25)",
250 "",
251 " -xt Include threads (TSOs) in a heap profile",
252 "",
253 " -xc Show current cost centre stack on raising an exception",
254 "",
255 # endif
256 #endif /* PROFILING or PAR */
257
258 #ifdef TRACING
259 "",
260 " -v Log events to stderr",
261 " -l Log events in binary format to the file <program>.eventlog",
262 " -vt Include time stamps when tracing events to stderr with -v",
263 "",
264 " -ls Log scheduler events",
265 "",
266 #endif
267
268 #if !defined(PROFILING)
269 "",
270 " -hT Heap residency profile (output file <program>.hp)",
271 #endif
272 " -i<sec> Time between heap samples (seconds, default: 0.1)",
273 "",
274 #if defined(TICKY_TICKY)
275 " -r<file> Produce ticky-ticky statistics (with -rstderr for stderr)",
276 "",
277 #endif
278 " -C<secs> Context-switch interval in seconds.",
279 " 0 or no argument means switch as often as possible.",
280 " Default: 0.02 sec; resolution is set by -V below.",
281 " -V<secs> Master tick interval in seconds (0 == disable timer).",
282 " This sets the resolution for -C and the profile timer -i.",
283 " Default: 0.02 sec.",
284 "",
285 #if defined(DEBUG)
286 " -Ds DEBUG: scheduler",
287 " -Di DEBUG: interpreter",
288 " -Dw DEBUG: weak",
289 " -DG DEBUG: gccafs",
290 " -Dg DEBUG: gc",
291 " -Db DEBUG: block",
292 " -DS DEBUG: sanity",
293 " -Dt DEBUG: stable",
294 " -Dp DEBUG: prof",
295 " -De DEBUG: event logging",
296 " -Da DEBUG: apply",
297 " -Dl DEBUG: linker",
298 " -Dm DEBUG: stm",
299 " -Dz DEBUG: stack squezing",
300 " -Dc DEBUG: program coverage",
301 " -Dr DEBUG: sparks",
302 "",
303 " NOTE: all -D options also enable -v automatically. Use -l to create a",
304 " binary event log file instead.",
305 "",
306 #endif /* DEBUG */
307 #if defined(THREADED_RTS) && !defined(NOSMP)
308 " -N<n> Use <n> processors (default: 1)",
309 " -N Determine the number of processors to use automatically",
310 " -q1 Use one OS thread for GC (turns off parallel GC)",
311 " -qg<n> Use parallel GC only for generations >= <n> (default: 1)",
312 " -qb Disable load-balancing in the parallel GC",
313 " -qa Use the OS to set thread affinity",
314 " -qm Don't automatically migrate threads between CPUs",
315 " -qw Migrate a thread to the current CPU when it is woken up",
316 #endif
317 " --install-signal-handlers=<yes|no>",
318 " Install signal handlers (default: yes)",
319 #if defined(THREADED_RTS)
320 " -e<size> Size of spark pools (default 100)",
321 #endif
322 #if defined(THREADED_RTS)
323 " -e<n> Maximum number of outstanding local sparks (default: 4096)",
324 #endif
325 #if defined(x86_64_HOST_ARCH)
326 " -xm Base address to mmap memory in the GHCi linker",
327 " (hex; must be <80000000)",
328 #endif
329 #if defined(USE_PAPI)
330 " -aX CPU performance counter measurements using PAPI",
331 " (use with the -s<file> option). X is one of:",
332 "",
333 /* " y - cycles", */
334 " 1 - level 1 cache misses",
335 " 2 - level 2 cache misses",
336 " b - branch mispredictions",
337 " s - stalled cycles",
338 " e - cache miss and branch misprediction events",
339 #endif
340 "",
341 "RTS options may also be specified using the GHCRTS environment variable.",
342 "",
343 "Other RTS options may be available for programs compiled a different way.",
344 "The GHC User's Guide has full details.",
345 "",
346 0
347 };
348
349 STATIC_INLINE rtsBool
350 strequal(const char *a, const char * b)
351 {
352 return(strcmp(a, b) == 0);
353 }
354
355 static void
356 splitRtsFlags(char *s, int *rts_argc, char *rts_argv[])
357 {
358 char *c1, *c2;
359
360 c1 = s;
361 do {
362 while (isspace(*c1)) { c1++; };
363 c2 = c1;
364 while (!isspace(*c2) && *c2 != '\0') { c2++; };
365
366 if (c1 == c2) { break; }
367
368 if (*rts_argc < MAX_RTS_ARGS-1) {
369 s = stgMallocBytes(c2-c1+1, "RtsFlags.c:splitRtsFlags()");
370 strncpy(s, c1, c2-c1);
371 s[c2-c1] = '\0';
372 rts_argv[(*rts_argc)++] = s;
373 } else {
374 barf("too many RTS arguments (max %d)", MAX_RTS_ARGS-1);
375 }
376
377 c1 = c2;
378 } while (*c1 != '\0');
379 }
380
381 void
382 setupRtsFlags(int *argc, char *argv[], int *rts_argc, char *rts_argv[])
383 {
384 rtsBool error = rtsFalse;
385 I_ mode;
386 I_ arg, total_arg;
387
388 setProgName (argv);
389 total_arg = *argc;
390 arg = 1;
391
392 *argc = 1;
393 *rts_argc = 0;
394
395 // process arguments from the ghc_rts_opts global variable first.
396 // (arguments from the GHCRTS environment variable and the command
397 // line override these).
398 {
399 if (ghc_rts_opts != NULL) {
400 splitRtsFlags(ghc_rts_opts, rts_argc, rts_argv);
401 }
402 }
403
404 // process arguments from the GHCRTS environment variable next
405 // (arguments from the command line override these).
406 {
407 char *ghc_rts = getenv("GHCRTS");
408
409 if (ghc_rts != NULL) {
410 splitRtsFlags(ghc_rts, rts_argc, rts_argv);
411 }
412 }
413
414 // Split arguments (argv) into PGM (argv) and RTS (rts_argv) parts
415 // argv[0] must be PGM argument -- leave in argv
416
417 for (mode = PGM; arg < total_arg; arg++) {
418 // The '--RTS' argument disables all future +RTS ... -RTS processing.
419 if (strequal("--RTS", argv[arg])) {
420 arg++;
421 break;
422 }
423 // The '--' argument is passed through to the program, but
424 // disables all further +RTS ... -RTS processing.
425 else if (strequal("--", argv[arg])) {
426 break;
427 }
428 else if (strequal("+RTS", argv[arg])) {
429 mode = RTS;
430 }
431 else if (strequal("-RTS", argv[arg])) {
432 mode = PGM;
433 }
434 else if (mode == RTS && *rts_argc < MAX_RTS_ARGS-1) {
435 rts_argv[(*rts_argc)++] = argv[arg];
436 }
437 else if (mode == PGM) {
438 argv[(*argc)++] = argv[arg];
439 }
440 else {
441 barf("too many RTS arguments (max %d)", MAX_RTS_ARGS-1);
442 }
443 }
444 // process remaining program arguments
445 for (; arg < total_arg; arg++) {
446 argv[(*argc)++] = argv[arg];
447 }
448 argv[*argc] = (char *) 0;
449 rts_argv[*rts_argc] = (char *) 0;
450
451 // Process RTS (rts_argv) part: mainly to determine statsfile
452 for (arg = 0; arg < *rts_argc; arg++) {
453 if (rts_argv[arg][0] != '-') {
454 fflush(stdout);
455 errorBelch("unexpected RTS argument: %s", rts_argv[arg]);
456 error = rtsTrue;
457
458 } else {
459 switch(rts_argv[arg][1]) {
460
461 /* process: general args, then PROFILING-only ones, then
462 CONCURRENT-only, TICKY-only (same order as defined in
463 RtsFlags.lh); within those groups, mostly in
464 case-insensitive alphabetical order. Final group is
465 x*, which allows for more options.
466 */
467
468 #ifdef TICKY_TICKY
469 # define TICKY_BUILD_ONLY(x) x
470 #else
471 # define TICKY_BUILD_ONLY(x) \
472 errorBelch("not built for: ticky-ticky stats"); \
473 error = rtsTrue;
474 #endif
475
476 #ifdef PROFILING
477 # define PROFILING_BUILD_ONLY(x) x
478 #else
479 # define PROFILING_BUILD_ONLY(x) \
480 errorBelch("not built for: -prof"); \
481 error = rtsTrue;
482 #endif
483
484 #ifdef TRACING
485 # define TRACING_BUILD_ONLY(x) x
486 #else
487 # define TRACING_BUILD_ONLY(x) \
488 errorBelch("not built for: -par-prof"); \
489 error = rtsTrue;
490 #endif
491
492 #ifdef THREADED_RTS
493 # define THREADED_BUILD_ONLY(x) x
494 #else
495 # define THREADED_BUILD_ONLY(x) \
496 errorBelch("not built for: -smp"); \
497 error = rtsTrue;
498 #endif
499
500 /* =========== GENERAL ========================== */
501 case '?':
502 error = rtsTrue;
503 break;
504
505 /* This isn't going to allow us to keep related options
506 together as we add more --* flags. We really need a
507 proper options parser. */
508 case '-':
509 if (strequal("install-signal-handlers=yes",
510 &rts_argv[arg][2])) {
511 RtsFlags.MiscFlags.install_signal_handlers = rtsTrue;
512 }
513 else if (strequal("install-signal-handlers=no",
514 &rts_argv[arg][2])) {
515 RtsFlags.MiscFlags.install_signal_handlers = rtsFalse;
516 }
517 else if (strequal("machine-readable",
518 &rts_argv[arg][2])) {
519 RtsFlags.MiscFlags.machineReadable = rtsTrue;
520 }
521 else if (strequal("info",
522 &rts_argv[arg][2])) {
523 printRtsInfo();
524 exit(0);
525 }
526 else {
527 errorBelch("unknown RTS option: %s",rts_argv[arg]);
528 error = rtsTrue;
529 }
530 break;
531 case 'A':
532 RtsFlags.GcFlags.minAllocAreaSize
533 = decode(rts_argv[arg]+2) / BLOCK_SIZE;
534 if (RtsFlags.GcFlags.minAllocAreaSize <= 0) {
535 bad_option(rts_argv[arg]);
536 }
537 break;
538
539 #ifdef USE_PAPI
540 case 'a':
541 switch(rts_argv[arg][2]) {
542 case '1':
543 RtsFlags.PapiFlags.eventType = PAPI_FLAG_CACHE_L1;
544 break;
545 case '2':
546 RtsFlags.PapiFlags.eventType = PAPI_FLAG_CACHE_L2;
547 break;
548 case 'b':
549 RtsFlags.PapiFlags.eventType = PAPI_FLAG_BRANCH;
550 break;
551 case 's':
552 RtsFlags.PapiFlags.eventType = PAPI_FLAG_STALLS;
553 break;
554 case 'e':
555 RtsFlags.PapiFlags.eventType = PAPI_FLAG_CB_EVENTS;
556 break;
557 case '+':
558 if (RtsFlags.PapiFlags.numUserEvents >= MAX_PAPI_USER_EVENTS) {
559 errorBelch("maximum number of PAPI events reached");
560 stg_exit(EXIT_FAILURE);
561 }
562 RtsFlags.PapiFlags.eventType = PAPI_USER_EVENTS;
563 RtsFlags.PapiFlags.userEvents[RtsFlags.PapiFlags.numUserEvents++] = rts_argv[arg] + 3;
564 break;
565 default:
566 bad_option( rts_argv[arg] );
567 }
568 break;
569 #endif
570
571 case 'B':
572 RtsFlags.GcFlags.ringBell = rtsTrue;
573 break;
574
575 case 'c':
576 if (rts_argv[arg][2] != '\0') {
577 RtsFlags.GcFlags.compactThreshold =
578 atof(rts_argv[arg]+2);
579 } else {
580 RtsFlags.GcFlags.compact = rtsTrue;
581 }
582 break;
583
584 case 'w':
585 RtsFlags.GcFlags.sweep = rtsTrue;
586 break;
587
588 case 'F':
589 RtsFlags.GcFlags.oldGenFactor = atof(rts_argv[arg]+2);
590
591 if (RtsFlags.GcFlags.oldGenFactor < 0)
592 bad_option( rts_argv[arg] );
593 break;
594
595 #ifdef DEBUG
596 case 'D':
597 {
598 char *c;
599
600 for (c = rts_argv[arg] + 2; *c != '\0'; c++) {
601 switch (*c) {
602 case 's':
603 RtsFlags.DebugFlags.scheduler = rtsTrue;
604 break;
605 case 'i':
606 RtsFlags.DebugFlags.interpreter = rtsTrue;
607 break;
608 case 'w':
609 RtsFlags.DebugFlags.weak = rtsTrue;
610 break;
611 case 'G':
612 RtsFlags.DebugFlags.gccafs = rtsTrue;
613 break;
614 case 'g':
615 RtsFlags.DebugFlags.gc = rtsTrue;
616 break;
617 case 'b':
618 RtsFlags.DebugFlags.block_alloc = rtsTrue;
619 break;
620 case 'S':
621 RtsFlags.DebugFlags.sanity = rtsTrue;
622 break;
623 case 't':
624 RtsFlags.DebugFlags.stable = rtsTrue;
625 break;
626 case 'p':
627 RtsFlags.DebugFlags.prof = rtsTrue;
628 break;
629 case 'l':
630 RtsFlags.DebugFlags.linker = rtsTrue;
631 break;
632 case 'a':
633 RtsFlags.DebugFlags.apply = rtsTrue;
634 break;
635 case 'm':
636 RtsFlags.DebugFlags.stm = rtsTrue;
637 break;
638 case 'z':
639 RtsFlags.DebugFlags.squeeze = rtsTrue;
640 break;
641 case 'c':
642 RtsFlags.DebugFlags.hpc = rtsTrue;
643 break;
644 case 'r':
645 RtsFlags.DebugFlags.sparks = rtsTrue;
646 break;
647 default:
648 bad_option( rts_argv[arg] );
649 }
650 }
651 // -Dx also turns on -v. Use -l to direct trace
652 // events to the .eventlog file instead.
653 RtsFlags.TraceFlags.trace_stderr = rtsTrue;
654 break;
655 }
656 #endif
657
658 case 'K':
659 RtsFlags.GcFlags.maxStkSize =
660 decode(rts_argv[arg]+2) / sizeof(W_);
661
662 if (RtsFlags.GcFlags.maxStkSize == 0)
663 bad_option( rts_argv[arg] );
664 break;
665
666 case 'k':
667 RtsFlags.GcFlags.initialStkSize =
668 decode(rts_argv[arg]+2) / sizeof(W_);
669
670 if (RtsFlags.GcFlags.initialStkSize == 0)
671 bad_option( rts_argv[arg] );
672 break;
673
674 case 'M':
675 RtsFlags.GcFlags.maxHeapSize =
676 decode(rts_argv[arg]+2) / BLOCK_SIZE;
677 /* user give size in *bytes* but "maxHeapSize" is in *blocks* */
678
679 if (RtsFlags.GcFlags.maxHeapSize <= 0) {
680 bad_option(rts_argv[arg]);
681 }
682 break;
683
684 case 'm':
685 RtsFlags.GcFlags.pcFreeHeap = atof(rts_argv[arg]+2);
686
687 if (RtsFlags.GcFlags.pcFreeHeap < 0 ||
688 RtsFlags.GcFlags.pcFreeHeap > 100)
689 bad_option( rts_argv[arg] );
690 break;
691
692 case 'G':
693 RtsFlags.GcFlags.generations = decode(rts_argv[arg]+2);
694 if (RtsFlags.GcFlags.generations < 1) {
695 bad_option(rts_argv[arg]);
696 }
697 break;
698
699 case 'T':
700 RtsFlags.GcFlags.steps = decode(rts_argv[arg]+2);
701 if (RtsFlags.GcFlags.steps < 1) {
702 bad_option(rts_argv[arg]);
703 }
704 break;
705
706 case 'H':
707 RtsFlags.GcFlags.heapSizeSuggestion =
708 decode(rts_argv[arg]+2) / BLOCK_SIZE;
709 break;
710
711 #ifdef RTS_GTK_FRONTPANEL
712 case 'f':
713 RtsFlags.GcFlags.frontpanel = rtsTrue;
714 break;
715 #endif
716
717 case 'I': /* idle GC delay */
718 if (rts_argv[arg][2] == '\0') {
719 /* use default */
720 } else {
721 I_ cst; /* tmp */
722
723 /* Convert to millisecs */
724 cst = (I_) ((atof(rts_argv[arg]+2) * 1000));
725 RtsFlags.GcFlags.idleGCDelayTime = cst;
726 }
727 break;
728
729 case 'S':
730 RtsFlags.GcFlags.giveStats = VERBOSE_GC_STATS;
731 goto stats;
732
733 case 's':
734 RtsFlags.GcFlags.giveStats = SUMMARY_GC_STATS;
735 goto stats;
736
737 case 't':
738 RtsFlags.GcFlags.giveStats = ONELINE_GC_STATS;
739 goto stats;
740
741 stats:
742 {
743 int r;
744 r = open_stats_file(arg, *argc, argv,
745 *rts_argc, rts_argv, NULL,
746 &RtsFlags.GcFlags.statsFile);
747 if (r == -1) { error = rtsTrue; }
748 }
749 break;
750
751 case 'Z':
752 RtsFlags.GcFlags.squeezeUpdFrames = rtsFalse;
753 break;
754
755 /* =========== PROFILING ========================== */
756
757 case 'l':
758 #ifdef TRACING
759 switch(rts_argv[arg][2]) {
760 case '\0':
761 RtsFlags.TraceFlags.trace_stderr = rtsFalse;
762 break;
763 case 's':
764 RtsFlags.TraceFlags.scheduler = rtsTrue;
765 break;
766 default:
767 errorBelch("unknown RTS option: %s",rts_argv[arg]);
768 error = rtsTrue;
769 break;
770 }
771 #else
772 errorBelch("not built for: -eventlog");
773 #endif
774 break;
775
776 case 'P': /* detailed cost centre profiling (time/alloc) */
777 case 'p': /* cost centre profiling (time/alloc) */
778 PROFILING_BUILD_ONLY(
779 switch (rts_argv[arg][2]) {
780 case 'x':
781 RtsFlags.CcFlags.doCostCentres = COST_CENTRES_XML;
782 break;
783 case 'a':
784 RtsFlags.CcFlags.doCostCentres = COST_CENTRES_ALL;
785 break;
786 default:
787 if (rts_argv[arg][1] == 'P') {
788 RtsFlags.CcFlags.doCostCentres =
789 COST_CENTRES_VERBOSE;
790 } else {
791 RtsFlags.CcFlags.doCostCentres =
792 COST_CENTRES_SUMMARY;
793 }
794 break;
795 }
796 ) break;
797
798 case 'R':
799 PROFILING_BUILD_ONLY(
800 RtsFlags.ProfFlags.maxRetainerSetSize = atof(rts_argv[arg]+2);
801 ) break;
802 case 'L':
803 PROFILING_BUILD_ONLY(
804 RtsFlags.ProfFlags.ccsLength = atof(rts_argv[arg]+2);
805 if(RtsFlags.ProfFlags.ccsLength <= 0) {
806 bad_option(rts_argv[arg]);
807 }
808 ) break;
809 case 'h': /* serial heap profile */
810 #if !defined(PROFILING)
811 switch (rts_argv[arg][2]) {
812 case '\0':
813 case 'T':
814 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_CLOSURE_TYPE;
815 break;
816 default:
817 errorBelch("invalid heap profile option: %s",rts_argv[arg]);
818 error = rtsTrue;
819 }
820 #else
821 PROFILING_BUILD_ONLY(
822 switch (rts_argv[arg][2]) {
823 case '\0':
824 case 'C':
825 case 'c':
826 case 'M':
827 case 'm':
828 case 'D':
829 case 'd':
830 case 'Y':
831 case 'y':
832 case 'R':
833 case 'r':
834 case 'B':
835 case 'b':
836 if (rts_argv[arg][2] != '\0' && rts_argv[arg][3] != '\0') {
837 {
838 char *left = strchr(rts_argv[arg], '{');
839 char *right = strrchr(rts_argv[arg], '}');
840
841 // curly braces are optional, for
842 // backwards compat.
843 if (left)
844 left = left+1;
845 else
846 left = rts_argv[arg] + 3;
847
848 if (!right)
849 right = rts_argv[arg] + strlen(rts_argv[arg]);
850
851 *right = '\0';
852
853 switch (rts_argv[arg][2]) {
854 case 'c': // cost centre label select
855 RtsFlags.ProfFlags.ccSelector = left;
856 break;
857 case 'C':
858 RtsFlags.ProfFlags.ccsSelector = left;
859 break;
860 case 'M':
861 case 'm': // cost centre module select
862 RtsFlags.ProfFlags.modSelector = left;
863 break;
864 case 'D':
865 case 'd': // closure descr select
866 RtsFlags.ProfFlags.descrSelector = left;
867 break;
868 case 'Y':
869 case 'y': // closure type select
870 RtsFlags.ProfFlags.typeSelector = left;
871 break;
872 case 'R':
873 case 'r': // retainer select
874 RtsFlags.ProfFlags.retainerSelector = left;
875 break;
876 case 'B':
877 case 'b': // biography select
878 RtsFlags.ProfFlags.bioSelector = left;
879 break;
880 }
881 }
882 break;
883 }
884
885 if (RtsFlags.ProfFlags.doHeapProfile != 0) {
886 errorBelch("multiple heap profile options");
887 error = rtsTrue;
888 break;
889 }
890
891 switch (rts_argv[arg][2]) {
892 case '\0':
893 case 'C':
894 case 'c':
895 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_CCS;
896 break;
897 case 'M':
898 case 'm':
899 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_MOD;
900 break;
901 case 'D':
902 case 'd':
903 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_DESCR;
904 break;
905 case 'Y':
906 case 'y':
907 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_TYPE;
908 break;
909 case 'R':
910 case 'r':
911 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_RETAINER;
912 break;
913 case 'B':
914 case 'b':
915 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_LDV;
916 break;
917 }
918 break;
919
920 default:
921 errorBelch("invalid heap profile option: %s",rts_argv[arg]);
922 error = rtsTrue;
923 }
924 )
925 #endif /* PROFILING */
926 break;
927
928 case 'i': /* heap sample interval */
929 if (rts_argv[arg][2] == '\0') {
930 /* use default */
931 } else {
932 I_ cst; /* tmp */
933
934 /* Convert to milliseconds */
935 cst = (I_) ((atof(rts_argv[arg]+2) * 1000));
936 RtsFlags.ProfFlags.profileInterval = cst;
937 }
938 break;
939
940 /* =========== CONCURRENT ========================= */
941 case 'C': /* context switch interval */
942 if (rts_argv[arg][2] == '\0')
943 RtsFlags.ConcFlags.ctxtSwitchTime = 0;
944 else {
945 I_ cst; /* tmp */
946
947 /* Convert to milliseconds */
948 cst = (I_) ((atof(rts_argv[arg]+2) * 1000));
949 RtsFlags.ConcFlags.ctxtSwitchTime = cst;
950 }
951 break;
952
953 case 'V': /* master tick interval */
954 if (rts_argv[arg][2] == '\0') {
955 // turns off ticks completely
956 RtsFlags.MiscFlags.tickInterval = 0;
957 } else {
958 I_ cst; /* tmp */
959
960 /* Convert to milliseconds */
961 cst = (I_) ((atof(rts_argv[arg]+2) * 1000));
962 RtsFlags.MiscFlags.tickInterval = cst;
963 }
964 break;
965
966 #if defined(THREADED_RTS) && !defined(NOSMP)
967 case 'N':
968 THREADED_BUILD_ONLY(
969 if (rts_argv[arg][2] == '\0') {
970 #if defined(PROFILING)
971 RtsFlags.ParFlags.nNodes = 1;
972 #else
973 RtsFlags.ParFlags.nNodes = getNumberOfProcessors();
974 #endif
975 } else {
976 RtsFlags.ParFlags.nNodes
977 = strtol(rts_argv[arg]+2, (char **) NULL, 10);
978 if (RtsFlags.ParFlags.nNodes <= 0) {
979 errorBelch("bad value for -N");
980 error = rtsTrue;
981 }
982 #if defined(PROFILING)
983 if (RtsFlags.ParFlags.nNodes > 1) {
984 errorBelch("bad option %s: only -N1 is supported with profiling", rts_argv[arg]);
985 error = rtsTrue;
986 }
987 #endif
988 }
989 ) break;
990
991 case 'g':
992 THREADED_BUILD_ONLY(
993 switch (rts_argv[arg][2]) {
994 case '1':
995 // backwards compat only
996 RtsFlags.ParFlags.parGcEnabled = rtsFalse;
997 break;
998 default:
999 errorBelch("unknown RTS option: %s",rts_argv[arg]);
1000 error = rtsTrue;
1001 break;
1002 }
1003 ) break;
1004
1005 case 'q':
1006 switch (rts_argv[arg][2]) {
1007 case '\0':
1008 errorBelch("incomplete RTS option: %s",rts_argv[arg]);
1009 error = rtsTrue;
1010 break;
1011 case '1':
1012 RtsFlags.ParFlags.parGcEnabled = rtsFalse;
1013 break;
1014 case 'g':
1015 if (rts_argv[arg][3] != '\0') {
1016 RtsFlags.ParFlags.parGcGen
1017 = strtol(rts_argv[arg]+3, (char **) NULL, 10);
1018 } else {
1019 errorBelch("bad value for -qg");
1020 error = rtsTrue;
1021 }
1022 break;
1023 case 'b':
1024 RtsFlags.ParFlags.parGcLoadBalancing = rtsFalse;
1025 break;
1026 case 'a':
1027 RtsFlags.ParFlags.setAffinity = rtsTrue;
1028 break;
1029 case 'm':
1030 RtsFlags.ParFlags.migrate = rtsFalse;
1031 break;
1032 case 'w':
1033 RtsFlags.ParFlags.wakeupMigrate = rtsTrue;
1034 break;
1035 default:
1036 errorBelch("unknown RTS option: %s",rts_argv[arg]);
1037 error = rtsTrue;
1038 break;
1039 }
1040 break;
1041 #endif
1042 /* =========== PARALLEL =========================== */
1043 case 'e':
1044 THREADED_BUILD_ONLY(
1045 if (rts_argv[arg][2] != '\0') {
1046 RtsFlags.ParFlags.maxLocalSparks
1047 = strtol(rts_argv[arg]+2, (char **) NULL, 10);
1048 if (RtsFlags.ParFlags.maxLocalSparks <= 0) {
1049 errorBelch("bad value for -e");
1050 error = rtsTrue;
1051 }
1052 }
1053 ) break;
1054
1055 /* =========== TICKY ============================== */
1056
1057 case 'r': /* Basic profiling stats */
1058 TICKY_BUILD_ONLY(
1059
1060 RtsFlags.TickyFlags.showTickyStats = rtsTrue;
1061
1062 {
1063 int r;
1064 r = open_stats_file(arg, *argc, argv,
1065 *rts_argc, rts_argv, TICKY_FILENAME_FMT,
1066 &RtsFlags.TickyFlags.tickyFile);
1067 if (r == -1) { error = rtsTrue; }
1068 }
1069 ) break;
1070
1071 /* =========== TRACING ---------=================== */
1072
1073 case 'v':
1074 switch(rts_argv[arg][2]) {
1075 #ifdef TRACING
1076 case '\0':
1077 RtsFlags.TraceFlags.trace_stderr = rtsTrue;
1078 break;
1079 case 't':
1080 RtsFlags.TraceFlags.timestamp = rtsTrue;
1081 break;
1082 #endif
1083 case 's':
1084 case 'g':
1085 // ignored for backwards-compat
1086 break;
1087 default:
1088 errorBelch("unknown RTS option: %s",rts_argv[arg]);
1089 error = rtsTrue;
1090 break;
1091 }
1092 break;
1093
1094 /* =========== EXTENDED OPTIONS =================== */
1095
1096 case 'x': /* Extend the argument space */
1097 switch(rts_argv[arg][2]) {
1098 case '\0':
1099 errorBelch("incomplete RTS option: %s",rts_argv[arg]);
1100 error = rtsTrue;
1101 break;
1102
1103 case 'b': /* heapBase in hex; undocumented */
1104 if (rts_argv[arg][3] != '\0') {
1105 RtsFlags.GcFlags.heapBase
1106 = strtol(rts_argv[arg]+3, (char **) NULL, 16);
1107 } else {
1108 errorBelch("-xb: requires argument");
1109 error = rtsTrue;
1110 }
1111 break;
1112
1113 #if defined(x86_64_HOST_ARCH)
1114 case 'm': /* linkerMemBase */
1115 if (rts_argv[arg][3] != '\0') {
1116 RtsFlags.MiscFlags.linkerMemBase
1117 = strtol(rts_argv[arg]+3, (char **) NULL, 16);
1118 if (RtsFlags.MiscFlags.linkerMemBase > 0x80000000) {
1119 errorBelch("-xm: value must be <80000000");
1120 error = rtsTrue;
1121 }
1122 } else {
1123 RtsFlags.MiscFlags.linkerMemBase = 0;
1124 }
1125 break;
1126 #endif
1127
1128 case 'c': /* Debugging tool: show current cost centre on an exception */
1129 PROFILING_BUILD_ONLY(
1130 RtsFlags.ProfFlags.showCCSOnException = rtsTrue;
1131 );
1132 break;
1133
1134 case 't': /* Include memory used by TSOs in a heap profile */
1135 PROFILING_BUILD_ONLY(
1136 RtsFlags.ProfFlags.includeTSOs = rtsTrue;
1137 );
1138 break;
1139
1140 /* The option prefix '-xx' is reserved for future extension. KSW 1999-11. */
1141
1142 default:
1143 errorBelch("unknown RTS option: %s",rts_argv[arg]);
1144 error = rtsTrue;
1145 break;
1146 }
1147 break; /* defensive programming */
1148
1149 /* =========== OH DEAR ============================ */
1150 default:
1151 errorBelch("unknown RTS option: %s",rts_argv[arg]);
1152 error = rtsTrue;
1153 break;
1154 }
1155 }
1156 }
1157
1158 if (RtsFlags.MiscFlags.tickInterval < 0) {
1159 RtsFlags.MiscFlags.tickInterval = 50;
1160 }
1161
1162 // If the master timer is disabled, turn off the other timers.
1163 if (RtsFlags.MiscFlags.tickInterval == 0) {
1164 RtsFlags.ConcFlags.ctxtSwitchTime = 0;
1165 RtsFlags.GcFlags.idleGCDelayTime = 0;
1166 RtsFlags.ProfFlags.profileInterval = 0;
1167 }
1168
1169 // Determine what tick interval we should use for the RTS timer
1170 // by taking the shortest of the various intervals that we need to
1171 // monitor.
1172 if (RtsFlags.ConcFlags.ctxtSwitchTime > 0) {
1173 RtsFlags.MiscFlags.tickInterval =
1174 stg_min(RtsFlags.ConcFlags.ctxtSwitchTime,
1175 RtsFlags.MiscFlags.tickInterval);
1176 }
1177
1178 if (RtsFlags.GcFlags.idleGCDelayTime > 0) {
1179 RtsFlags.MiscFlags.tickInterval =
1180 stg_min(RtsFlags.GcFlags.idleGCDelayTime,
1181 RtsFlags.MiscFlags.tickInterval);
1182 }
1183
1184 if (RtsFlags.ProfFlags.profileInterval > 0) {
1185 RtsFlags.MiscFlags.tickInterval =
1186 stg_min(RtsFlags.ProfFlags.profileInterval,
1187 RtsFlags.MiscFlags.tickInterval);
1188 }
1189
1190 if (RtsFlags.ConcFlags.ctxtSwitchTime > 0) {
1191 RtsFlags.ConcFlags.ctxtSwitchTicks =
1192 RtsFlags.ConcFlags.ctxtSwitchTime /
1193 RtsFlags.MiscFlags.tickInterval;
1194 } else {
1195 RtsFlags.ConcFlags.ctxtSwitchTicks = 0;
1196 }
1197
1198 if (RtsFlags.ProfFlags.profileInterval > 0) {
1199 RtsFlags.ProfFlags.profileIntervalTicks =
1200 RtsFlags.ProfFlags.profileInterval /
1201 RtsFlags.MiscFlags.tickInterval;
1202 } else {
1203 RtsFlags.ProfFlags.profileIntervalTicks = 0;
1204 }
1205
1206 if (error) {
1207 const char **p;
1208
1209 fflush(stdout);
1210 for (p = usage_text; *p; p++)
1211 errorBelch("%s", *p);
1212 stg_exit(EXIT_FAILURE);
1213 }
1214 }
1215
1216
1217 static void
1218 stats_fprintf(FILE *f, char *s, ...)
1219 {
1220 va_list ap;
1221 va_start(ap,s);
1222 if (f == NULL) {
1223 vdebugBelch(s, ap);
1224 } else {
1225 vfprintf(f, s, ap);
1226 }
1227 va_end(ap);
1228 }
1229
1230 static int /* return -1 on error */
1231 open_stats_file (
1232 I_ arg,
1233 int argc, char *argv[],
1234 int rts_argc, char *rts_argv[],
1235 const char *FILENAME_FMT,
1236 FILE **file_ret)
1237 {
1238 FILE *f = NULL;
1239
1240 if (strequal(rts_argv[arg]+2, "stderr")
1241 || (FILENAME_FMT == NULL && rts_argv[arg][2] == '\0')) {
1242 f = NULL; /* NULL means use debugBelch */
1243 } else {
1244 if (rts_argv[arg][2] != '\0') { /* stats file specified */
1245 f = fopen(rts_argv[arg]+2,"w");
1246 } else {
1247 char stats_filename[STATS_FILENAME_MAXLEN]; /* default <program>.<ext> */
1248 sprintf(stats_filename, FILENAME_FMT, argv[0]);
1249 f = fopen(stats_filename,"w");
1250 }
1251 if (f == NULL) {
1252 errorBelch("Can't open stats file %s\n", rts_argv[arg]+2);
1253 return -1;
1254 }
1255 }
1256 *file_ret = f;
1257
1258 {
1259 /* Write argv and rtsv into start of stats file */
1260 int count;
1261 for(count = 0; count < argc; count++) {
1262 stats_fprintf(f, "%s ", argv[count]);
1263 }
1264 stats_fprintf(f, "+RTS ");
1265 for(count = 0; count < rts_argc; count++)
1266 stats_fprintf(f, "%s ", rts_argv[count]);
1267 stats_fprintf(f, "\n");
1268 }
1269 return 0;
1270 }
1271
1272
1273
1274 static I_
1275 decode(const char *s)
1276 {
1277 I_ c;
1278 StgDouble m;
1279
1280 if (!*s)
1281 return 0;
1282
1283 m = atof(s);
1284 c = s[strlen(s)-1];
1285
1286 if (c == 'g' || c == 'G')
1287 m *= 1000*1000*1000; /* UNchecked! */
1288 else if (c == 'm' || c == 'M')
1289 m *= 1000*1000; /* We do not use powers of 2 (1024) */
1290 else if (c == 'k' || c == 'K') /* to avoid possible bad effects on */
1291 m *= 1000; /* a direct-mapped cache. */
1292 else if (c == 'w' || c == 'W')
1293 m *= sizeof(W_);
1294
1295 return (I_)m;
1296 }
1297
1298 static void GNU_ATTRIBUTE(__noreturn__)
1299 bad_option(const char *s)
1300 {
1301 errorBelch("bad RTS option: %s", s);
1302 stg_exit(EXIT_FAILURE);
1303 }
1304
1305 /* -----------------------------------------------------------------------------
1306 Getting/Setting the program's arguments.
1307
1308 These are used by System.Environment, and parts of the RTS.
1309 -------------------------------------------------------------------------- */
1310
1311 void
1312 setProgName(char *argv[])
1313 {
1314 /* Remove directory from argv[0] -- default files in current directory */
1315 #if !defined(mingw32_HOST_OS)
1316 char *last_slash;
1317 if ( (last_slash = (char *) strrchr(argv[0], '/')) != NULL ) {
1318 prog_name = last_slash+1;
1319 } else {
1320 prog_name = argv[0];
1321 }
1322 #else
1323 char* last_slash = argv[0] + (strlen(argv[0]) - 1);
1324 while ( last_slash > argv[0] ) {
1325 if ( *last_slash == '/' || *last_slash == '\\' ) {
1326 prog_name = last_slash+1;
1327 return;
1328 }
1329 last_slash--;
1330 }
1331 prog_name = argv[0];
1332 #endif
1333 }
1334
1335 void
1336 getProgArgv(int *argc, char **argv[])
1337 {
1338 if (argc) { *argc = prog_argc; }
1339 if (argv) { *argv = prog_argv; }
1340 }
1341
1342 void
1343 setProgArgv(int argc, char *argv[])
1344 {
1345 /* Usually this is done by startupHaskell, so we don't need to call this.
1346 However, sometimes Hugs wants to change the arguments which Haskell
1347 getArgs >>= ... will be fed. So you can do that by calling here
1348 _after_ calling startupHaskell.
1349 */
1350 prog_argc = argc;
1351 prog_argv = argv;
1352 setProgName(prog_argv);
1353 }
1354
1355 /* These functions record and recall the full arguments, including the
1356 +RTS ... -RTS options. The reason for adding them was so that the
1357 ghc-inplace program can pass /all/ the arguments on to the real ghc. */
1358 void
1359 getFullProgArgv(int *argc, char **argv[])
1360 {
1361 if (argc) { *argc = full_prog_argc; }
1362 if (argv) { *argv = full_prog_argv; }
1363 }
1364
1365 void
1366 setFullProgArgv(int argc, char *argv[])
1367 {
1368 int i;
1369 full_prog_argc = argc;
1370 full_prog_argv = stgCallocBytes(argc + 1, sizeof (char *),
1371 "setFullProgArgv 1");
1372 for (i = 0; i < argc; i++) {
1373 full_prog_argv[i] = stgMallocBytes(strlen(argv[i]) + 1,
1374 "setFullProgArgv 2");
1375 strcpy(full_prog_argv[i], argv[i]);
1376 }
1377 full_prog_argv[argc] = NULL;
1378 }
1379